1997 Chevy C1500 5.7

[Amorris85]

Before and after Blackbear tune on stock truck. It’s 20° colder now. Spun alittle on launch but still improved. Probably can get alittle better when it warms up and I don’t spin. It’s still a slow old truck but the drivability and shifting are great and very noticeable. Black Bear Performance has great communication.

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[SlamTheMan]

Before and after Blackbear tune on stock truck. It’s 20° colder now. Spun alittle on launch but still improved. Probably can get alittle better when it warms up and I don’t spin. It’s still a slow old truck but the drivability and shifting are great and very noticeable. Black Bear Performance has great communication.

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What did you have Black Bear do far as shift firmness & torque management? And how is the 4l60e doing with the changes